Friction closure container



Sept. 7, 1937; w. w. HODGSON FRICTION CLOSURE CONTAINER Filed Oct. 17, 1934 Patented Sept. h 7, 1937 PATENT OFFICE FRICTION CLOSURE CONTAINER,

William W. Hodgson,

Continental Can Co Chicago, Ill., assignor to mpany, Inc., New York,

N. Y., a corporation of New York Application October 17, 1934, Serial No. 748,704

2 Claims.

The invention relates to a friction closure container.

An object of the invention is to provide a container of the friction closure type wherein the wall forming the friction seat is adapted to yield bodily to receive the friction closure.

A further object of the invention is to provide a container of the above type wherein the friction wall has integrally joined thereto a parallel supporting wall located between the friction wall and the double seam at the outer edge of the container.

These and other objects will in part be obvious and will be hereinafter more fully disclosed.

Referring to the drawing:

Figure 1 is a view partly in side elevation and partly in section of a container showing the formation of the friction and supporting walls with the friction closure in place.

Figure 2 is an enlarged sectional view of the type of container shown in Figure 1.

Figure 3 is an enlarged sectional view of a container showing a slightly modified form of friction and supporting walls.

Figure 4 is an enlarged sectional view of a further modified form of friction and supporting walls.

Figure 5 is an enlarged sectional view of a still further modified form of friction closure container.

The invention relates to a container of the friction closure type. The container comprises a body portion preferably of metal with ends seamed thereto in the usual manner, one of said ends forming a top for the container and having an opening centrally thereof spaced from the double seam. The metal of said top is drawn so as to provide a yielding supporting wall extending from the plane of the top at substantially right angles thereto and is also provided with a friction seating wall parallel to, spaced from and integrally joined to the supporting wall. When the friction closure is forced against the friction wall which is adapted to receive the same, the metal forming the friction wall and the supporting wall located adjacent thereto will yield bodily to receive the friction closure. The flexibility of these parallel walls serves to make a very tight friction fit.

Referring more in detail to the drawing and particularly to Figures 1 and 2, a container is shown having a body portion 6 with ends I and 8 double seamed thereto in a well known manner. the double seam being diagrammatically indicated at 8 in the drawing. The end 8 is in the form of a top and has a central opening in spaced from the double seam 9 on the container. This opening I is adapted to receive a friction plug H of the usual construction, The metal of said top 8 is drawn to form a yielding supporting wall I2 which extends from the-plane of the top at substantially right angles thereto. Integrally joined to the supporting wall l2 and spaced parallel thereto is a friction wall l3. When the 010- sure is inserted, the wall I 3 will yield and to a 10 certain extent swing about its support indicated at M and the pressure on the support l4 will cause the wall l2 to swing about its support indicated at IS in a similar manner, and thus the friction seat yields bodily to receive the closure. By this manner of construction of the parts, a very tight friction closure is provided for the container.

In the form of the invention shown in Figure 3, the friction wall I 3 extends part way parallel to the supporting wall l2 and then is bent at an angle to contact with the portion l5 of the container. These walls will yield in the same manner as described above, the only difference being that the friction wall I3 is provided with a bent portion l6 which will more or less protect the hand from any raw edge of metal and also closes or covers the recess between the walls preventing collecting of material therein.

In the modified form of the invention shown in Figure 4 of the drawing, the friction wall i3 is provided at its upper end with a closed hollow head I! which will provide a smooth even surface around the opening in the top of the container and expose no raw edge of metal. It will be noted in this figure that the circumference of the head I! is less than the space between the supporting wall and the friction wall so that there will be ample room for the friction wall to yield without coming in contact with the supporting wall.

In the form shown in Figure 5 of the drawing, the metal of the top is bent to form parallel supporting and friction walls l2 and I3, the bend in the walls being inverted from the form of bend illustrated in Figures 1, 2, 3 and 4. This is a slightly different manner of forming a friction seat for a friction closure. As in the case of the other forms of the invention, these walls will also yield bodily to receive the friction closure. It will be noted in all of the figures of the drawing that the friction plug li is provided with a flange I! which overlies the container top and is spaced therefrom at its outer edge so that an instrument may be placed beneath said flange and used to pry the closure from the container.

From the above it will be evident that a container of the friction closure type has been devised wherein the friction seat thereof will yield bodily to receive the friction closure therefore. When the closure is removed, the parts which yield will spring back into their original position and if it is desired to close the container again, the friction seat will again yield to receive the closure.

In the commercial form of friction plug closures, there is more or less of a reshaping of the friction wall when a plug is forced hard onto the seat for a tight closure. It is not easy to obtain a tight seal under these conditions or to reclose witha tight seal. With the present construction where the friction wall is so supported as to yield bodily, a tight friction seal can be obtained with comparatively little pressure on the closure and a tight reseal can be easily accomplished.

It is obvious that minor changes in the details of construction and the arrangement of parts may be made without departing from the spirit of the invention as set forth in the appended claims.

Having thus described the invention, what I claim as new and desire to secure by Letters Patent, is:

1. A sheet metal container comprising a body portion, a top double-seamed to said body portion, said top having a central opening therethrough, the metal in said top being drawn to form a supporting wall extending substantially at right angles to the plane of the container top and a friction wall located within and carried by the free end of said supporting wall, said friction wall being substantially parallel to and spaced from said supporting wall whereby said friction wall can yield with said supporting wall and independently thereof, said can top being shaped so as to substantially close the space between said supporting wall and said friction wall at the upper end thereof, a friction plug closure for said container having a depressed portion forming a substantially vertical friction wall adapted to engage the friction wall of the can' top, said friction plug closure having a peripheral portion extending outwardly beyond the support for the friction wall.

2. A sheet metal container comprising a body portion, a top double-seamed to said body portion, said top having a central opening therethrough, the metal in said top being drawn to form a depending supporting wall extending substantially at right angles to the plane of the can top. and a friction wall located within and carried by the lower free end of said supporting wall, said friction wall being substantially parallel thereto and spaced from said supporting wall whereby said friction wall can yield with said supporting wall and independently thereof, the upper portion of said friction wall being extended and bent outwardly so as to contact with the can top at the base of the supporting wall whereby the space between said supporting wall and the friction wall is closed, and a friction plug closure for said container having a depressed portion forming a substantially vertical friction wall adapted to engage the friction wall of the can top, said friction plug closure having a peripheral portion extending outwardly beyond the support for the" friction wall;

. WILLIAM W. HODGSON. 

